Basis of Presentation - Intangibles (Details) (USD $)	6 Months Ended
	Mar. 31, 2015	Sep. 30, 2014	Dec. 24, 2014	Jan. 30, 2015
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	9,175,000	$ 6,112,000
Accumulated Amortization	(3,797,000)	(3,434,000)
Net Carrying Amount	5,378,000	2,678,000
Non-compete agreements
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,032,000	1,055,000
Accumulated Amortization	(1,032,000)	(955,000)
Net Carrying Amount	0	100,000
Non-compete agreements | Minimum
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	4 years
Non-compete agreements | Maximum
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	8 years
Customer lists
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	699,000	817,000
Accumulated Amortization	(568,000)	(592,000)
Net Carrying Amount	131,000	225,000
Useful Life (in years)	10 years
Technology
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,085,000	2,319,000
Accumulated Amortization	(1,734,000)	(1,682,000)
Net Carrying Amount	351,000	637,000
Technology | Minimum
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	5 years
Technology | Maximum
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	10 years
In-process research and development
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,600,000	1,600,000
Accumulated Amortization	(187,000)	(27,000)
Net Carrying Amount	1,413,000	1,573,000
Useful Life (in years)	5 years
Trade names
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,330,000	0
Accumulated Amortization	(18,000)	0
Net Carrying Amount	1,312,000	0
Useful Life (in years)	15 years
Other
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,429,000	321,000
Accumulated Amortization	(258,000)	(178,000)
Net Carrying Amount	2,171,000	143,000
Other | Minimum
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	2 years
Other | Maximum
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	12 years
SoLayTec, B.V.
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Percentage of voting interests acquired			51.00%
Intangible assets acquired			2,200,000
BTU International, Inc (BTU)
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Intangible assets acquired				$ 0